Unable to connect sandbox cluster

Error: connect failed to replica set sandbox-shard-0/sandbox-shard-00-00-dwkit.mongodb.net:27017,sandbox-shard-00-01-dwkit.mongodb.net:27017,sandbox-shard-00-02-dwkit.mongodb.net:27017 :
connect@src/mongo/shell/mongo.js:257:13
@(connect):1:6
exception: connect failed